Hi Harshad_919,
I think I must have misunderstood you initially. I was thinking that you want to make data span across specific time, 12 or 24 hours, but it seems that you want to adjust time format based on local clock system. If that is the case, you want to use
dateTimeLabelFormats to format labels.
Demo: https://jsfiddle.net/BlackLabel/s24ckw13/
API reference: https://api.highcharts.com/highcharts/x ... belFormats,
https://api.highcharts.com/class-refere ... dateFormat
If you want to set it dynamically, you need to find out user localization and then update chart with appropriate set of
dateTimeLabelFormats options. In Highcharts it doesn't happen automatically.
Let me know if that was what you were looking for!
Regards!